On April 22, 1970, millions of Americans participated in the first Earth Day – an environmental movement that has since mobilized activists in over 193 countries, led to the establishment of the Environmental Protection Agency (EPA), and pushed for landmark legislation acts such as the Clean Air Act, the Clean Water Act, and the Endangered Species Act. According to Earth Day’s official website, it is “the largest secular observance in the world” as over a billion people use this day of awareness to tackle climate issues on a global, national, and local scale.
Climate change might define our future if we don’t adapt our impact on the environment and restore the planet’s ecosystems. The following environmental speakers are not only spreading awareness about the natural and technological solutions to climate change already within our grasp, but are also inspiring others to work toward making a better home for us all.
1. Erin Brockovich
Environmental Activist, TV Host, Consumer Advocate & Bestselling Author
Erin Brockovich is an American legal clerk, consumer advocate, and environmental activist, who, despite her lack of education in the law, was instrumental in building a case against the Pacific Gas and Electric Company of California in 1993. Her successful lawsuit was the subject of a 2000 film, Erin Brockovich, which starred Julia Roberts.
After uncovering a 30-year long history of poisoning the groundwater in California, Brockovich dug in and didn’t give up until she had exposed the truth – and had gotten justice for its victims. She truly is proof that one person can make a difference, and she believes that everyone – in their own way – can do the same. Seen by millions as a symbol of American justice and the importance of fighting for the truth, Brockovich continues to speak out on behalf of those who can’t.
“Everything went so smoothly and Erin was such an amazing speaker who took our suggestions and wove them into her comments seamlessly. I’d be happy to promote her as a speaker for other events!” — Lindsay Mapp, YWCA Golden Gate Silicon Valley
2. Winona LaDuke
Environmental Activist, Author, Climate Justice, Renewable Energy & Sustainability Advocate; Executive Director of “Honor the Earth”
Winona LaDuke is an internationally renowned environmental activist and advocate for Indigenous communities working on issues of sustainable development, renewable energy, and food systems. She lives and works on the White Earth reservation in northern Minnesota and is a two-time vice-presidential candidate with Ralph Nader for the Green Party.
As Program Director of Honor the Earth, she pursues environmental justice for Indigenous communities. In her own community, she is the founder of the White Earth Land Recovery Project, one of the largest reservation-based nonprofit organizations in the country.
“Just a great experience all around! Winona is a treasure and a delight.” — Geoffrey Kain, Embry-Riddle Aeronautical University
3. Katharine Hayhoe
Atmospheric Scientist, Professor of Political Science & Director of Climate Science Center at Texas Tech
Katharine Hayhoe is an accomplished atmospheric scientist who studies climate change and why it matters to us here and now. She is also a remarkable communicator who has received the American Geophysical Union’s climate communication prize, the Stephen Schneider Climate Communication award, and been named to several lists including Time Magazine’s 100 Most Influential People, Foreign Policy’s 100 Leading Thinkers, and FORTUNE magazine’s World’s Greatest Leaders.
Hayhoe has served as lead author on the Second, Third, and Fourth National Climate Assessments. She also hosts and produces the PBS Digital Series, Global Weirding, and serves on advisory committees for a broad range of organizations including the Smithsonian Natural History Museum, the Earth Science Women’s Network, and the American Association for the Advancement of Science.
“The event was a great success! Katharine’s keynote was excellent and so well-received. We were so fortunate to have her on campus.” — Rachel Abarbanell, Coastal Carolina University
4. Dr. Sylvia Earle
Explorer-in-Residence at National Geographic, Oceanographer & Former Chief Scientist of the NOAA
Dr. Sylvia A. Earle is National Geographic’s Explorer-in-Residence and formerly served as the Chief Scientist of the National Oceanic and Atmospheric Administration (NOAA). She has been called “Her Deepness” by The New Yorker and The New York Times, “Living Legend” by the Library of Congress, and “First Hero for the Planet” by TIME magazine.
Earle is the founder of Deep Ocean Exploration and Research, Inc., founder of Mission Blue and SEAlliance, chair of the Advisory Council of the Harte Research Institute, the Ocean in Google Earth, a founding Ocean Elder, and leader of the NGS Sustainable Seas Expeditions. With SEAlliance and Mission Blue, she is committed to developing a global network of areas on the land and in the ocean, “Hope Spots,” to safeguard the living systems that provide stability and resiliency in response to accelerating climate change.
5. Xiuhtezcatl Martinez
Indigenous Climate & Community Activist; Hip-Hop Artist; Author of “Imaginary Borders”
Earth Guardians’ Youth Director Xiuhtezcatl Martinez is an Indigenous climate activist, hip-hop artist, and powerful voice on the front lines of a global youth-led environmental movement. In 2013, he received the United States Community Service Award from President Obama and was the youngest of 24 national change-makers chosen to serve on the President’s youth council.
At the early age of six, Martinez began speaking around the world, from the United Nations Summit in Rio de Janeiro, to addressing the General Assembly at the United Nations in New York. He has worked locally to get pesticides out of parks, coal ash contained, moratoriums on fracking in his state, and is currently a plaintiff in a youth-led lawsuit against the federal government for their failure to protect the atmosphere for future generations. Martinez has traveled across the nation and to many parts of the world educating his generation about the state of the planet they are inheriting, and inspiring youth to take action to protect the planet.
6. David Doubilet
National Geographic Photographer & Founding Member of the International League of Conservation Photographers
David Doubilet has been called the Audubon of the sea, a master craftsman who combines technology and art to create extravagantly beautiful photographs of coral reefs, shipwrecks, or sharks to make us see the oceans in a new way. He enters the sea as a journalist, artist, and explorer to document both the beauty and the devastation in our oceans, and believes that photography has the power to educate, honor, humiliate, illuminate, and influence change.
Today, with over 75 features under his belt, he is the most published photographer working for National Geographic. Doubilet is a featured speaker for the “National Geographic Live!” series, a columnist, contributing editor and author of 12 books, including “Light in the Sea,” “The Kingdom of Coral,” and “Fish Face.” His many prestigious awards include The Academy of Achievement Award and The Lennart Nilsson Award in Scientific Photography.
7. Adrian Grenier
Actor Known for HBO’s “Entourage”; Environmental Activist, UN Ambassador & Social Impact Entrepreneur; Founder of Lonely Whale Foundation
Adrian Grenier is an actor, producer, director, and musician known for portraying Vincent Chase in the television series “Entourage.” Grenier has cemented his reputation as an advocate for sustainable living and environmental issues. He co-founded the lifestyle brand SHFT.com in 2010, which promotes sustainability through film, design, art, and culture. He also launched Earth Speed Media, a think tank and content-production firm focusing on sustainability, social responsibility, and environmental stewardship. Grenier is a United Nations Environment Goodwill Ambassador and advocates for reducing single-use plastic and protecting marine species.
Additionally, he is an Ambassador at the UN Environment Programme Clean Seas, a campaign to end marine plastic pollution. He is the first Chief Earth Advocate for the space tourism company World View, inspiring new perspectives on the planet and encouraging more profound respect for it as a living organism. His commitment to sustainable practices was recognized when he became a finalist for the Food Innovator Awards for his SHFT Mobile Kitchen Classroom.
“Adrian was great! He was right on time, was a pleasure to speak with before the session to all of our staff, and delivered an engaging and interesting session for our attendees.” — Charlene Soucy, Questex
8. Jamie Margolin
Climate Change Activist; Author; Founder & Co-Executive Director of Youth-Led Climate Action Group “Zero Hour”
Jamie Margolin is a Colombian-American filmmaker, organizer, author, and student at NYU Tisch, Film & TV. Margolin founded Zero Hour, an international youth-led climate justice organization, in July 2018, to create entry points, training, and resources for young organizers wanting to take action on climate change.
As executive director, she led Zero Hour in organizing youth climate marches in Washington D.C. and 25 cities around the world, federal lobby days in the House and Senate, the Youth Climate Summit in Miami Florida and testified in the the House of Representatives with Greta Thunberg and Vic Barrett. Margolin is the author of the book, “Youth To Power: Your Voice and How To Use It,” which serves as a guide to organizing and activism, and is a recipient of the 2020 Gold Medal Nautilus Book Award for young adult nonfiction.
9. Dr. Sylvia Hood Washington
Founder & Chief Environmental Research Scientist for Environmental Health Research Associates, LLC
Dr. Sylvia Hood Washington is an environmental epidemiologist, environmental engineer, and environmental historian with 30 years of research experience working on the impact of industrial pollution on human health and ecosystems. She is currently the Chief Environmental Research Scientist at Environmental Health Research Associates, LLC. Dr. Washington successfully implemented the Research Conservation and Recovery Act (RCRA), Clean Water Act, Clean Air Act, Superfund, and National Environmental Policy Act (NEPA) regulations.
In November 2010 she was elected Co-Chair of the Illinois EPA’s Environmental Justice Advisory Board. The Board comprises leaders from Environmental Justice groups, private industry, non-governmental organizations, law firms, and municipal officials in Illinois. In 2012 she was appointed by Governor Patrick Quinn to sit on the first Environmental Justice Commission for the state of Illinois.
10. Jim Knox
Explorers Club Member, Zoologist & TEDx Speaker
As the writer and host for PBS’ “Wild Zoofari,” Jim Knox has shared his knowledge and passion for wildlife with millions of Animal Planet viewers throughout the U.S., Russia, Thailand, the Middle East, and Europe. Knox currently serves as the Curator of Education at Connecticut’s AZA accredited Beardsley Zoo, where he directs Education and Wildlife Conservation programs. He is also co-creator of The Conservation Discovery Corps, which won first place honors with the Association of Zoos and Aquariums as the Outstanding Education Program in the nation.
Knox uses his knowledge of nature and wildlife to share tales of animal inspiration and resilience. He invites his audiences to learn how nature combats its most deadly foes and how humans can model their behaviors to survive – and even thrive – amidst crisis.
These popular Earth Day speakers know a thing or two about our planet’s resilience and propensity for survival, but also how fragile our environment can be if we continue to ignore the severity of climate change. There is no better place to start taking action than to raise awareness, and these climate change activists, wildlife conservationists, and sustainability speakers are working hard to do just that.